Feeding-head



F. MOHN.

FEEDING HEAD.

APPLICATION FILED .IUNE B 1918.

Patented Oct. 12, 1920.

2 sHEUs-SHEET 1 UNITED STATES PATENT OFFICE.

FINN MOHN, OF CHICAGO, ILLINOIS, ASSIGNOR TO WESTERN ELECTRIC COMPANY, INCORPORATED, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

FEEDING-HEAD.

Specification of Letters Patent.

Patented Oct. 12., 1920.

Appiication med June s, 191s. serial No. 239,068.

To all whom it may concern: Y

Be it known that I, FINN MoHN, a citizen of the United States, residing at Chicago, 1n the county of Cook and State of Illinois, have invented certain new and useful'Improvements in Feeding-Heads, of which the following is a full, clear, concise, andexact description.

This invention relates to feeding heads for giving to cylindrical strips a combined rotary and longitudinal movement.-

The object of this invention is to provide a device of this character of 'compact structure in which the moving parts may be securely incased and in which all of the parts are easily and readily adjustable to provide for different sized cylindrical devices, and to provide for variations in speed of the longitudinal movement of the cylindrical devices.

In accordance with the general features of this invention, there are provided a plurality of feed rollers of suitable material 'which are adapted to engage the surface of a cylindrical strip to support it to rotate it an move it in a longitudinal direction at the same time. Each ofthe rollers is preferwit in its support to adjust the angular relation of the roller with respect to the longitudinal axis of the cylindrical strip, and the supporting fork is also adapted to be adorder that the exact angular position of` each roller may be accurately determined.

Inthe drawings illustrating` the invention- Figure 1 is a view in front elevation with the cover removed of a feeding head embodying the features of this invention;

ig. 2 is an enlarged sectional view taken upon the line 2-2 of Fig. 1;

Fig. 3 is a fragmentary plan view illustrating an adjustable supporting block and guides therefor for permittingthe radial adjustment of therollers, and

ig. 4 is a schematic view of a grinding ably carried by a fork which may be turned machine illustrating one application of the feeding heads of this invention.

As shown in the drawings, particularly Fig. 1 5, 6, and 7 designate feed rollers adapted to engage the surface of a cylindrical strip 8. As shown, each of these feed rollers is provided with a knurled or otherwise roughened surfaceon its periphery which in the operation of the head is rotated in engagement with the surface of the cylindrical strip 8 to give it a combined rotaryand longitudinal movement. The feed rollers 5, 6, and 7 also serve vto support the strip during its movement past the rollers, thereby keeping the strip in proper relation .to the grinding wheel.

As shown in Fig. 2, each ofthe feed rollers is secured to a spindle 10 which is romember 20. The sleeve 19 carries a'bevel gear 21 which meshes with a main drivin gear 22 keyed to a rotatable sleeve 23 whic may be driven from any suitable source of power.

At its upper end the roller fork 13 extends` through a micrometer sleeve 30 which is supported in the sliding block 15 and which is provided with exterior screw threads adapted to be engaged by a locking nut 31. The fork 13 is engaged tov rotate-with the micrometer sleeve 30 by means of a key 32. Upon a lower collar surface 34 of the micrometer sleeve 30 there is provided a scale or index 35, the index lines of which are adapted to register with an index 37 providedupon the sliding block '15. The yangular position of the feed roller may be adjusted by loosening the locking nut 31 and rotating the roller fork 13 and micrometer sleeve 30 through the desired angle. The amount of this rotation will be'regi'stered by means of the index lines on the collar ofthe micromthat each of the several feed rollers may be accurately adjusted to the same angular position.

The radial adjustment of the rollers is provided for as follows:

Each of the sliding blocks is mounted between guides 40-40 and has pivotally secured to it at one end a link 41 which eX- tends down through an opening or slot 42 in the casing member and has its lower end pivotally secured to a worm gear 45. This worm lgear 45 is rotatably mounted upon an inwardly projecting collar 46 provided upon the frame member 20 and concentric to the rotatable sleeve 23. -Each of the links 41 is secured to the worm gear 45 outside of the center of rotation of said worm gear vided on its outer endbeyond the casingmember 20 with a hand wheel 50 Aby means .of which the radial adjustment of the feed rollers is controlled.

In Fig. 4, two feeding heads 55 and 56 embodying the features of this invention are illustrated in connection with a grinding Wheel 57 which may be used for polishing or finishing hard rubber strips or tubes which are fed past it by means vof the feeding heads of this invention. It is necessary,

of course, that both feeding heads be driven at the same rate of speed, and as illustrative ofone method by means of which they may be driven, both heads are shown connected by means of gears with a shaft '60 which is driven through the agency of a shaft 61- and gear 62 by means .of a motor 63.

The feed rollers are held in engagement with the cylindrical strips by means of springs 70, 71, and 72 which surround the roller fork 13 with one end bearing against the micrometer sleeve 31, the other end against an adjustable collar 75 vmounted upon the roller fork 13.

What is claimed is:

1. In a feeding head for cylindrical strips, a plurality of feed rollers adapted to engage the surface of a strip to support and give to it a combined rotary and longitudinal movement, and means for adjusting the angular position of said rollers withvrespect to the longitudinal axis of the strip to control the speed of the longitudinal movement of the strip.

2. In a feeding head for cylindrical strips, a plurality of feed rollers adapted to engage the surface of a strip to give to it a combined rotary and longitudinal movement, means for adjusting the angular position of each of said rollers to control the longitudinal speed of the strip, and means for determining the extent of angular movement of each of said rollers. l

3. In a feeding lhead for cylindrical strips, a plurality of radially and angularly adjustable feed rollers -adapted to engage the surface of astrip to support and give to it a combined rotary and longitudinal movement.

4. In a feeding head for cylindrical strips, a plurality of radially adjustable feed rollers adapted to engage the surface of a strip and rotatable about their own` axes to give to the strip a combined rotary and longitudinal movement, and a common adjusting means for moving all of said rollers simultaneously in a radial direction.

5. In a feeding head for cylindrical strips, a plurality of rollers adapted to engage the surface of a strip to give to it a combined rotary and longitudinal movement, a supporting fork for each of said rollers, a radially movable block in which each of said supporting forks is mounted, a rotatable member, and a link connecting each of said movable blocks with said ro-` tatable member said links being movable with said rotatable member to move said blocks toward or away from the center of rotation of the feeding head.

6. In a feeding head for cylindrical strips, a plurality of rollers adapted to e11- gage the surface of a strip to give to it a combined rotary and longitudinalv movement, a supporting fork for each of said rollers, al radially movable block for each of said supporting forks, a micrometer sleeve in each of said blocks in which said fork is supported, and adjustable locking means to secure each of said sleeves in its block.

7. In a feeding head for cylindrical strips, a plurality of rollers adapted to engage the surface of a strip to support it and rotatable about their own axes to give to the strip a combined rotary and longitudinal movement, driving gears for rotating said rollers, and an inclosing casing for said driving gears 8.- In a feeding head for cylindrical strips, a casing member, a plurality of rollers adapted to engage the surface of a strip to give to it a combined, rotary and longitudinal movement, a radially extending supporting arm for each of said rollers adjustably supported u onsaid casing, driving gears for each o said rollers mounted within `said casing, and adjustable means for said arms mounted within the casing.`

9. AIn a feeding head for cylindrical strips, a casing, a plurality of feeding rollers mounted Within said casing, a roller fork for each of said rollers, a slidable block through which the radial adjustment of each of said rollers with respect to the cylindrical strip is obtained, guides for said cylindrical block mounted upon the outside of said casing, rotatable adjusting means- Within said casing, and connecting links extending through said casing to connect said adjusting means with said sliding blocks.

In Witness whereof I hereunto subscribe my name this 27th day of May, A. D. 1918.

FINN MoHN. 

